Zelfbouw Links

Sluiten VLF Projekten

Sluiten 136 kHz Projekten

Sluiten 472 kHz Projekten

Sluiten 500 kHz Projekten

Sluiten Multiband HF Projekten

Sluiten 160m Projekten

Sluiten 80m Projekten

Sluiten 60m Projekten

Sluiten 40m Projekten

Sluiten 30m Projekten

Sluiten 20m Projekten

Sluiten 17m Projekten

Sluiten 15m Projekten

Sluiten 12m Projekten

Sluiten 10m Projekten

Sluiten 6m Projekten

Sluiten 4m Projekten

Sluiten VHF Luchtvaart

Sluiten 2m Projekten

Sluiten 70cm Projekten

Sluiten 23cm Projekten

Sluiten 13cm Projekten

Sluiten 9cm Projekten

Sluiten 6cm Projekten

Sluiten 3cm Projekten

Sluiten 1,25cm Projekten

Sluiten EHF Projekten

Sluiten Antenne-aanpassingen

Sluiten Shack Accessoires

Sluiten Voedingen

Sluiten Meetinstrumenten

Sluiten µController Arduino

Junk Box Circuits

Sluiten Buizen

Sluiten Transistors 2N-Serie

Sluiten Transistors BC-Serie

Sluiten Transistors BD-Serie

Sluiten Transistors BF-Serie

Sluiten IC 74XX-Serie

Sluiten IC 74LSXX-Serie

Sluiten IC 74SXX-Serie

Sluiten IC LM-Serie

Sluiten IC TDA-Serie

HF Propagatie
Bezoekers

   Bezoekers

   Bezoekers online

Zoeken




RSS lezer - ARRL News

American Radio Relay League | Ham Radio Association and Resources


The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.


The ARRL Solar Report  Kijk naar?

Spaceweather.com reports a Cannibal Coronal Mass Ejection on April 15 sparked geomagnetic storms.  On April 16, the storm became severe (G4) with Northern Lights sighted as far south as France.  The storm is subsiding now to a category G1/G2, which could still produce high-latitude auroras.

Although Regions AR4062 and AR4064 have been relatively quiet they are more structurally complex than ant...

... / ... Lees meer...

(19/04/2025 @ 00:17)
Former ARRL Vice Director Wayne Overbeck, N6NB, SK  Kijk naar?

Former ARRL Vice Director and Contest Advisory Committee Chairman Wayne Overbeck, N6NB, passed away Saturday April 12, 2025. He was 82 years old. Overbeck held an Amateur Extra-class license and was active in amateur radio for over 68 years. He served four terms as an elected ARRL Vice Director, from 1984 to 1993, and was also chairman of the ARRL Contest Advisory Committee during the 1970s and...

... / ... Lees meer...

(18/04/2025 @ 21:19)
(18/04/2025 @ 20:56)
  Kijk naar?

April 18th is honored as World Amateur Radio Day, when we celebrate the founding of the International Amateur Radio Union (IARU). The organization was born out of a meeting in Paris on April 17, 1925. ARRL took a leadership role in its founding, with ARRL Founder Hiram Percy Maxim, then 1AW, serving as the first President of IARU.

As reported by Kenneth B. Warner, 1BHW, in the June 1925 edition ...

... / ... Lees meer...

(17/04/2025 @ 20:53)
(17/04/2025 @ 20:48)
(14/04/2025 @ 22:31)
The ARRL Solar Report  Kijk naar?

Due to most of the regions on the solar disk being fairly simple in
their magnetic complexity, solar activity is expected to remain at
low levels with a chance for M-class flares (R1 to R2, or Minor to
Moderate).

Solar wind parameters are expected to trend further towards nominal
levels as the Coronal Hole High-Speed Stream effects continue to
wane.

Additional enhancements from another negative polari...

... / ... Lees meer...

(11/04/2025 @ 21:20)
(10/04/2025 @ 21:01)
Interesting ARRL Ham Radio Open House Locations  Kijk naar?

ARRL Ham Radio Open Houses are happening all over the western hemisphere, and more dates are being added each week. Throughout the entire month of April, radio clubs, schools, and even museums are opening their doors to help introduce the public to amateur radio. They will show of their ham radio stations, demonstrating the technology and innovation enjoyed by radio amateurs today. 

Some of the ...

... / ... Lees meer...

(10/04/2025 @ 20:35)
(09/04/2025 @ 21:46)
(04/04/2025 @ 20:59)
The ARRL Solar Report  Kijk naar?

Solar activity is likely to be moderate (R1-R2, Minor-Moderate) with
a slight chance for X-class flares through April 5.

The geomagnetic field is expected to be quiet to minor storm levels
on April 4 and 5.

NOAA Geomagnetic Activity Probabilities for April 5 and 6 forecast a
15% chance, and then a 1% chance, of a Moderate storm for the
reporting period.

The forecast of solar and geomagnetic activity c...

... / ... Lees meer...

(04/04/2025 @ 19:07)
HamSCI Call for Operators and Monitors 2025  Kijk naar?

HamSCI, Ham Radio Science Citizen Investigation, is preparing now for a series of meteor scatter (MS) experiments later this year and need amateur radio operators to help.

While the target storms are in August (Perseids) and December (Geminids) preparation and testing is already underway. This is a combination 'special event' and a contest to generate contact data during meteor scatter events u...

... / ... Lees meer...

(04/04/2025 @ 19:00)
(04/04/2025 @ 18:31)
Fram2 Astronaut Conducts First Amateur Radio Contacts from SpaceX Dragon  Kijk naar?

Rabea Rogge, LB9NJ/KD3AID, a private astronaut on the crew of the Fram2 mission, has conducted the first amateur radio contacts from aboard a SpaceX Dragon capsule. The Fram2 flight sets many firsts, including being the first crewed mission to do polar orbits of the Earth, and Rogge became the first German woman in space.

The mission is funded and commanded by cryptocurrency billionaire Chun Wa...

... / ... Lees meer...

(04/04/2025 @ 18:24)

Laatst import : 19/04/2025 @ 05:14

Google Ads


^ Boven ^